In reply to willoates:
This one is good if you've got the accomodation for it.
Every year the LUUMC's first club trip is to Northumberland and the accomodation is the village hall in Lucker. It's a big, high ceilinged thing with beams going across the width of the hall at approx 4m off the floor. Hang a length of rope from a beam, and then about 3m away, hang another length of rope from the same beam. Each length of rope has a Fig 8 on a bight on it at about 2m off the floor.
So now you can dangle someone in a harness from one of the hanging ropes, and they're faced off by their opponent who is dangling a few metres away from the other rope. Each combatant removes one of their socks.
The combatants are then pulled away from each other and swung into each other as violently as possible. When they collide, they must grapple with each other and do everything they can to remove their opponents sock, while thrashing their legs wildly in a bid to prevent their sock being removed. Tip: don't wear big thick walking socks. Too easy to grab.
The loser is the person whose sock is removed first. To be honest, there isn't really a winner. It's called sock wrestling. I believe other University clubs have weedier and inferior versions (really low beams so you can't swing people into each other, or even (appalingly) having the noble contest take place on the floor), but I've never heard of a contest that matches up to Leeds'.